Waning Gibbous on

Moon phase on 25 September 2013 Wednesday is Waning Gibbous, 20 days old Moon is in Gemini.

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Moon phase for

Lunar calendar 2013 | September 2013

Waning Gibbous phase
Waning Gibbous phase
Image credit: NASA/Goddard Space Flight Center Scientific Visualization Studio.

Waning Gibbous 66% illuminated

Waning Gibbous is the lunar phase on . Seen from Earth, illuminated fraction of the Moon surface is 66% and getting smaller. The 20 days old Moon is in ♊ Gemini.

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Moon phases for next 7 days

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Moon phase and lunation details

6 days after Full Moon

Previous main lunar phase is the Full Moon before 6 days on 19 September 2013 at 11:13.

Moonrise and moonset

Moon rises in the evening and sets in the morning. It is visible to the southwest and it is high in the sky after midnight.

Moon in ♊ Gemini

Moon is passing about ∠14° of ♊ Gemini tropical zodiac sector.

Apparent angular diameter ∠1779"

Lunar disc appears visually 7.3% narrower than solar disc. Moon and Sun apparent angular diameters are ∠1779" and ∠1914".

Harvest Moon before 6 days

Next Full Moon is the Hunter Moon of October 2013 after 23 days on 18 October 2013 at 23:38.

Upcoming main Moon phases

Neap tide

There is low ocean tide on this date. Sun and Moon gravitational forces are not aligned, but meet at big angle, so their combined tidal force is weak.

Lunation 169 / 1122

The Moon is 20 days old. Earth's natural satellite is moving from the middle to the last part of current synodic month. This is lunation 169 of Meeus index or 1122 from Brown series.

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Synodic month length 29.54 days

Length of current 169 lunation is 29 days, 12 hours and 58 minutes. It is 43 minutes longer than next lunation 170 length.

Lunation length longer than mean

Length of current synodic month is 14 minutes longer than the mean length of synodic month, but it is still 6 hours and 49 minutes shorter, compared to 21st century longest.

Lunar orbit position on

True anomaly ∠249.2°

This lunation true anomaly is ∠249.2°. At the beginning of next synodic month true anomaly will be ∠285.3°. The length of upcoming synodic months will keep decreasing since the true anomaly gets closer to the value of New Moon at point of perigee (∠0° or ∠360°).

Moon before apogee

9 days after point of perigee on 15 September 2013 at 16:34 in ♑ Capricorn. The lunar orbit is getting wider, while the Moon is moving outward the Earth. It will keep this direction for the next 2 days, until it get to the point of next apogee on 27 September 2013 at 18:17 in ♋ Cancer.

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Distance to Moon 402 854 km

Moon is 402 854 km (250 322 mi) away from Earth on this date. Moon moves farther next 2 days until apogee, when Earth-Moon distance will reach 404 309 km (251 226 mi).

Moon after descending node

2 days after its descending node on 22 September 2013 at 13:48 in ♉ Taurus, the Moon is following the southern part of its orbit for the next 11 days, until it will cross the ecliptic from South to North in ascending node on 6 October 2013 at 22:08 in ♏ Scorpio.

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Draconic month

15 days after beginning of current draconic month in ♏ Scorpio, the Moon is moving from the second to the final part of it.

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Moon before northern standstill

12 days after previous South standstill on 12 September 2013 at 18:30 in ♐ Sagittarius, when Moon has reached southern declination of ∠-19.685°. Next day the lunar orbit moves northward to face North declination of ∠19.599° in the next northern standstill on 26 September 2013 at 01:03 in ♊ Gemini.

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Syzygy in 9 days

After 9 days on 5 October 2013 at 00:35 in ♎ Libra, the Moon will be in New Moon geocentric conjunction with the Sun and this alignment forms next Sun-Moon-Earth syzygy.

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